diff --git a/README.md b/README.md
index e1aaadd..12dd76f 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ Then pass `--wallet-name` to any command to use that wallet:
 
 ```bash
 npx @getalby/cli --wallet-name work get-balance
-npx @getalby/cli --wallet-name personal pay-invoice --invoice lnbc...
+npx @getalby/cli --wallet-name personal pay-invoice lnbc...
 ```
 
 ### Connection secret resolution (in order of priority)
@@ -105,7 +105,7 @@ npx @getalby/cli get-wallet-service-info
 npx @getalby/cli make-invoice --amount 1000 --description "Payment"
 
 # Pay an invoice
-npx @getalby/cli pay-invoice --invoice "lnbc..."
+npx @getalby/cli pay-invoice "lnbc..."
 
 # Send a keysend payment
 npx @getalby/cli pay-keysend --pubkey "02abc..." --amount 100
diff --git a/src/commands/pay-invoice.ts b/src/commands/pay-invoice.ts
index ef88e1c..351e158 100644
--- a/src/commands/pay-invoice.ts
+++ b/src/commands/pay-invoice.ts
@@ -6,13 +6,13 @@ export function registerPayInvoiceCommand(program: Command) {
   program
     .command("pay-invoice")
     .description("Pay a lightning invoice")
-    .requiredOption("-i, --invoice <bolt11>", "Invoice to pay")
+    .argument("<bolt11>", "Invoice to pay")
     .option("-a, --amount <sats>", "Amount (for zero-amount invoices)", parseInt)
-    .action(async (options) => {
+    .action(async (invoice, options) => {
       await handleError(async () => {
         const client = await getClient(program);
         const result = await payInvoice(client, {
-          invoice: options.invoice,
+          invoice,
           amount_in_sats: options.amount,
         });
         output(result);